The greater share of the value of any significant collector car is in the provenance – who sat in the seat before you, and experienced the same vehicle, can make a massive difference to the price the car commands. What then of a car that was specifically built for, and used, by Pope Paul VI? It went on to become the focal point of countless ticker tape parades for the first astronauts to orbit the moon (Apollo 8's Borman, Lovell and Anders), the first astronauts to set foot on the moon (Apollo 11's Neil Armstrong and Buzz Aldrin, plus Command Module Pilot Michael Collins) plus Apollo 13's Lovell, Mattingly and Haise and Apollo 15's Scott, Worden and Irwin, President Lyndon Baines Johnson and Vice President Hubert Humphrey. How much will it go for?